A method and an apparatus determines at least one parameter of a material flow. The parameter is for example temperature, pressure or velocity of the gas or plasma flow. The material flow is either a gas or a plasma flow. The method and the apparatus are utilizing atomic absorption spectroscopy and feed...http://www.google.es/patents/US6023329?utm_source=gb-gplus-sharePatente US6023329 - Method and apparatus for determining parameters of a gas or plasma flow
Method and apparatus for determining parameters of a gas or plasma flow